linux-kernel - Re: [PATCH v2 1/3] vt: add cursor blink interval escape sequence

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Message-ID: <20150328075021.GB5248@xo-6d-61-c0.localdomain>
Date:	Sat, 28 Mar 2015 08:50:21 +0100
From:	Pavel Machek <pavel@....cz>
To:	Scot Doyle <lkml14@...tdoyle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Jiri Slaby <jslaby@...e.cz>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
	linux-man@...r.kernel.org, linux-api@...r.kernel.org
Subject: Re: [PATCH v2 1/3] vt: add cursor blink interval escape sequence

On Fri 2015-03-27 20:35:03, Mike Frysinger wrote:
> On 26 Mar 2015 13:54, Scot Doyle wrote:
> > Add an escape sequence to specify the current console's cursor blink
> > interval. The interval is specified as a number of milliseconds until
> > the next cursor display state toggle, from 50 to 65535. /proc/loadavg
> > did not show a difference with a one msec interval, but the lower
> > bound is set to 50 msecs since slower hardware wasn't tested.
> 
> if they want to be crazy, why not let them ?  it's not like we generally prevent 
> the user from destroying their machine.  i.e. just require the value to be > 0 
> (unless you want to let 0 disable things).

Because anyone with access to console can do this, and we only allow root
users to destroy the machine.
									Pavel


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